Question about 2005 Acura MDX

Open Question

Temperature sensor is half way to 3/4 hot. Why?

What does this indicate?

Posted by Anonymous on

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

1998 nissan maxima runs hot, replaced the thermostat and at times gauge still register hot, what else could cause this?


Its possible that your problem also stay in the Engine Coolant Temperature (ECT) sensor resistance changes in response to engine coolant temperature.

Keep in mindthat the sensor resistance decreases as coolant temperature increases. This provides a reference signal, which indicates engine coolant temperature, to the ECM.



10_12_2011_2_44_56_pm.gif

Fig.: Compare the sensor readings with these values



10_12_2011_2_47_01_pm.gif

Fig.: Location of the thermal sending unit (A) next to the coolant temperature sensor (B)

Keep us updated.

Oct 12, 2011 | 1998 Nissan Maxima

1 Answer

Why wont my dually truck start when hot


Does the engine appear to be overheating? Signs of engine overheating are :
1. Sluggish engine operation when hot.
2. Detonation upon acceleration (pinging).
3. Coolant boiling in overflow tank.
If any of these symptoms are present, then place a cooking thermometer on the upper radiator hose where it connects to the engine. Tape the thermometer to the hose to hold it in place. Run the engine until operating temperature is reached. The temperature should stay between approx. 195deg.F and 225deg.F. If it goes over 230deg.F, then overheating is indicated. Before shutting off the engine, check to see if the engine cooling fan is running. If not, then turn on the AC switch and see if it comes on. If the fan still does not turn on, then a faulty cooling fan or fan circuit is indicated. Other causes of hard/no start when hot include :
1. Dirty air filter.
2. Bad temperature sensor (computer).
3. Bad map sensor.
4. Bad EGR valve.
5. Failing ignition module.
6. Leaking injector(s)
If the vehicle is used primarily as a work vehicle, then it might be overdue for an oil change.
If the oil is fuel soaked, then it can cause an over rich mixture during hot restart.
I hope that this information is helpful and thank you for using Fixya.com.
CAUTION : Be careful when working around a running engine. Keep hands and loose clothing away from moving engine parts and engine cooling fan.

Jun 02, 2011 | 1996 Chevrolet C/K 3500

1 Answer

Hi, how are u all, I have a nissan sunny 1984 130 Y , with a very good condition, recently i skim the engin head, for now evry thing seems good except that the cooling fan won't work untill the temperature...


Normally the fan will not come on until the temperature is high enough to open the thermostat then your fan will come on. It sounds like it's working the way its ment to. When you turn the a\c on the fan will come on to keep your engine cool.

Mar 22, 2017 | 1997 Nissan Sentra

1 Answer

Where is the temperature sensor for the temperature gage


Engine Temperature Sensor Operation:00116_engine_temp_sensor.jpgThis sensor monitors the temperature of the engine and sends that information to the engine control computer to regulate the amount of fuel needed - more if engine is cold and less if it's hot. The signal generated can also be sent to the temperature gauge as a visual indicator of overheating and imminent danger

I checked with autozone.com and their site says that the engine temperature sensor is not used on both engine sizes available for this vehicle.

The Coolant Temperature Sensor is used though. So maybe it has a dual purpose on your vehicle.

Coolant Temperature Sensor Operation:00113_coolant_temp_sensor.jpgThis sensor monitors the temperature of the engine and sends that information to the engine control computer to regulate the amount of fuel needed. More fuel is needed if the engine is cold; less if it's hot. If the temperature is extreme, the signal will be sent to the temperature gauge as a visual indicator of overheating and imminent danger.

Because ECT (engine coolant temperature) sensor procedures vary depending upon their location, first locate the part. You may need to partially drain the engine coolant to prevent coolant spillage.
  • Disconnect the negative battery cable.
  • Unplug the ECT.
  • Then, unscrew it.
  • Reverse the removal procedures to install the new part.
  • Connect the negative battery cable to the battery.









Nov 03, 2010 | 1995 Chevrolet Caprice Classic

1 Answer

Fuel& Temperature Gauges are sticking Example gas tank full of fuel but only reads half full, temperature reads hot but engine is running at normal temperature What is wrong and how can we fix it


they could be seperate problems. the fuel level sender in the tank may be bad. the 2 wire coolant temp sensor may be faulty. there may be a bad ground some where or a bad connection in the harness. although it is common for the circuit boards in the cluster to go bad and you get funny readings on one half or the other. i would start diagnosing the cooling problem first. those engines have an air bleed valve above the t-stat. make sure there isnt a pocket of super heatad steam in the system (first indication of a small leak). the cts also controls the fan relays through the pcm. are the fans comming on as the temp guage passes half way? what does the guage do when the key is on, engine off, cts unpluged, and the connector jumpered or grounded? the guage should have a full sweep if it doesnt sweep the cluster or harness are suspect

Aug 11, 2010 | 1992 Buick Regal

2 Answers

In my chevy impala i have no hot air comming out of the vents. The temperture gage reads at about half and then will fluctuate. What could be the problem?


Check your coolant level. When the level goes down, the heater is usually the first unit to show the lack of coolant (no heat). As the coolant decreases, eventually the temperature sensor is intermittently 'out of the water' and can't indicate water temperature, causing the fluctuation. If your coolant is low, find and repair the leak.

Jan 27, 2010 | 2003 Chevrolet Impala

1 Answer

My temperature light keeps coming on and off..how do i solve this problem


Hi,
I rather actual temperature gauges over lights, since you know if you're truly running hot or not.
In your case, I would recommend that when this happens, have someone use a thermal indicator (maybe autozone can do this) to see what your engine temp is and see if it's running hot. The light is tripped by a sensor that is activated by excessive heat from the engine.
If the engine temp is normal, replace the sensor. If it's hot:
1. Make sure you're oil level is good
2. Make sure the coolant level is good
3. Make sure the water pump is working
(I'll assume your radiator is not stopped up)
4. Consider replacing the thermostat.
I hope this helps... Good luck!

Oct 13, 2009 | 1995 Audi 90

1 Answer

Teampreature gauge not working


Sounds like you have installed a 'over-temperature switch' type sender unit- this type of sensor is only meant to control an over-temperature alarm indicator lamp that is either 'on' or 'off'.

The temperature gauge requires a 'variable resistance type' temperarure sensor to control the meter deflection.
When cold the temperature sensor is of high resistance, hence less meter deflection;
when hot temperature sensor is of low resistance, hence more meter deflection.

You need to procure a matching sensor to suit the type of gauge installed.

Is it possible you have connected to the temperature wrong temperature sensor? - most vehicles are fitted with both a gauge type (variable resistance) sensor to drive the temperature gauge, as well as a switch type (on or off) sensor to drive the overtemp indicator light.

Jun 03, 2009 | 1983 Ford Econoline

Not finding what you are looking for?
2005 Acura MDX Logo

Related Topics:

14 people viewed this question

Ask a Question

Usually answered in minutes!

Top Acura Experts

yadayada
yadayada

Level 3 Expert

76109 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8270 Answers

Are you an Acura Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...